Principal Controls Software Engineer

Company	Commonwealth Fusion Systems
Location	Milpitas, CA, USA
Salary	$150000 – $250000
Type	Full-Time
Degrees	Bachelor’s
Experience Level	Senior

A bachelor’s degree in a relevant engineering field (e.g., EE, mechatronics, software)
5+ years of experience as a controls engineer on complex mechanical systems — for example: design, construction, and operation of controls for industrial, large-scale equipment
PLC programming experience in IEC 611:31-3 languages
Familiar with modern tools like GitHub and CI/CD release management
HMI design, implementation and maintenance utilizing Inductive Automation’s Ignition platform
Experience with fieldbus systems such as EtherCAT
Experience developing and tuning control loops
Experience with enclosure design compliant with NFPA79/NEC/UL508A standards
Experience with power distribution and controls
Experience with cable and harness design using AutoCAD Electrical
Experience with specification generation and supplier engagement
High self-motivation and drive to execute quickly with excellent troubleshooting and problem- solving skills
Design for manufacturability, serviceability, and simplicity over complexity
Knowledge of interlock systems and methods that conform to NFPA 79
Familiarity with applying ISO, NFPA, UL and other standards to design solutions

Work closely with R&D team to outline interfaces and requirements for equipment and software operation for equipment control
Participate in initial equipment conceptual development and balance product specifications, operational control requirements, layout complexity, cost, quality, and lead time limits
Write, and debug PLC structured text with an emphasis on generating code that is organized, structured, documented, maintainable, and reusable. PLC code will interact with subsystems and 3rd party equipment
Implement (ANSI/[RIA15.06/OSHA](http://RIA15.06/OSHA) compliant) control reliable safety systems for safeguarding industrial equipment
Design, modify, and approve electrical schematics for industrial and test equipment (compliant with NFPA79/NEC/UL508A standards)
Generate aesthetically simple HMI screens for complex machinery while providing sufficient feedback for troubleshooting
Create machine interactions with plant-wide SCADA to communicate product acceptability, machine status, and operational variables
Debug and optimize automated operations to maximize cycle time, improve availability, and yield
Work with external software contractors to develop the control systems for internal tools (Define requirements, manage priorities, drive testing and implementation plans)